Below is shown my new project called "monoblock" because I´m using single pieces for clamping the arms on the central plate. This is an evolution of the HEXA 777 3Dprinted (see other post on that)
Motors are RcTimer 5010 with 15x5 propellers. Battery 5000 4S, IMHO the best combination for endurance
ESC32 in between central plates.
Rest of appendages are manufactured with 3D Print. Attached is also the 3dXML file for you to play with (free viewer from here: http://www.3ds.com/products-services/3d-xml/1/)
Hope you like